492737138 has 8 divisors (see below), whose sum is σ = 751222380. Its totient is φ = 242329680.

The previous prime is 492737111. The next prime is 492737159. The reversal of 492737138 is 831737294.

It can be written as a sum of positive squares in 2 ways, for example, as 390181009 + 102556129 = 19753^2 + 10127^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2019293 + ... + 2019536.

Almost surely, 2^492737138 is an apocalyptic number.

492737138 is a deficient number, since it is larger than the sum of its proper divisors (258485242).

492737138 is a wasteful number, since it uses less digits than its factorization.

492737138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038892.

The product of its digits is 254016, while the sum is 44.

The square root of 492737138 is about 22197.6831673938. The cubic root of 492737138 is about 789.8387418545.

The spelling of 492737138 in words is "four hundred ninety-two million, seven hundred thirty-seven thousand, one hundred thirty-eight".